DMCA
Single-User Adaptive and Multiuser Receivers for DS-CDMA in Peer-to-Peer Packet Radio Networks
BibTeX
@MISC{Howlader_single-useradaptive,
author = {Mohammad M. K. Howlader and Brian D. Woerner},
title = {Single-User Adaptive and Multiuser Receivers for DS-CDMA in Peer-to-Peer Packet Radio Networks},
year = {}
}
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Abstract
Abstract | The performance of direct-sequence spread-spectrum (DS-SS) in packet radio networks suers from the near-far problem. This near-far problem can be alleviated by using either a multiuser receiver or a single-user adaptive receiver along with centralized or distributed power control. This paper compares the feasibility of using a multiuser re-ceiver based on the selective parallel or successive interfer-ence cancellation technique with a single-user adaptive re-ceiver in a peer-to-peer packet communication environment. The performance of an N tap chip-rate linear adaptive re-ceiver (CHRT-LAR) with normalized least-mean square al-gorithm (NLMS) is analyzed. For the single-user adaptive receiver, one user's spreading code and delay is known at the receiver, whereas the multiuser detector requires knowledge of the spreading codes and delays of all the users produc-ing signicant interference. To illustrate their potential for ad hoc networks, the BER performance and complexity of these two detection schemes are compared in this paper. I.
Keyphrases
multiuser receiver single-user adaptive peer-to-peer packet radio network near-far problem single-user adaptive receiver packet radio network suer single-user adaptive re-ceiver user produc-ing signicant interference distributed power control tap chip-rate linear adaptive re-ceiver multiuser re-ceiver detection scheme peer-to-peer packet communication environment successive interfer-ence cancellation technique ad hoc network normalized least-mean square al-gorithm ber performance multiuser detector selective parallel
